1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
a_sh-v [17]
3 years ago
15

What is the molar solubility of magnesium carbonate ( MgCO3 ) in water? The solubility-product constant for MgCO3 is 3.5 × 10-8

at 25°C.
Chemistry
2 answers:
DaniilM [7]3 years ago
8 0

Answer:

S MgCO3 = 1.8708 E-4 M at 25 °C

Explanation:

  • MgCO3 ↔ Mg2+  +  CO32-

           S                S             S

  • Ksp = 3.5 E-8

⇒ Ksp = 3.5 E-8 = [ Mg2+ ] * [ CO32- ] = S * S

⇒ Ksp = 3.5 E-8 = S²

⇒ S = √3.5 E-8

⇒ S = 1.8708 E-4 M

   

Umnica [9.8K]3 years ago
8 0

Answer:

1.75 ×10^-8 moldm-3

Explanation:

MgCO3(s) <----------> Mg^2+(aq) + CO3^2-(aq)

Ksp= 2x

x= Ksp/2

But Ksp= 3.5 × 10^-8 mol^2dm^-6

x= 3.5 × 10^-8/2

x= 1.75 ×10^-8 moldm-3

You might be interested in
What effect does salt have on a marshmallow?
Naily [24]

Answer:

The original marshmallow was named for the inclusion of marshmallow root in the recipe. The roots and leaves of the marshmallow plant contain mucilage, a slimy-textured demulcent best known for its use as a homeopathic cough suppressant. Marshmallow root is considered to be soothing and mildly antimicrobial. It has long been used as an herbal treatment for minor digestive issues and skin irritations, although its use in the creation of its namesake confection has long since fallen by the wayside.

Explanation:

So basically salt makes it strecthy! Please mark brainliest!!

3 0
2 years ago
What kind of energy does a rubber band have when stretched
ICE Princess25 [194]
Elastic potential energy
4 0
3 years ago
Read 2 more answers
How much heat is given off when 869 g iron bar cools from 94 degrees celsius to 5
melomori [17]

Answer:

Heat given off was -34.34kJ

Explanation:

Mass of iron bar = 869g

Initial temperature (T1) = 94°C

Final temperature (T2) = 5°C

Specific heat capacity of iron (c) = 0.444J/g°C

Heat energy (Q) = Mc∇T

Q = heat energy

c = specific heat capacity

∇T = change in temperature

M = mass of the substance

Q = mc∇T

∇T = T2 - T1

Q = Mc(T2 -T1)

Q = 869 * 0.444 * (5 - 94)

Q = 385.836 * -89

Q = -34339.404J

Q = -34.34kJ

The heat given of was -34.34kJ

4 0
3 years ago
Convert 2.345 centimeters cubed to inches cubed. 1inch = 2.54cm
GalinKa [24]

Answer:

0.92322835

Explanation:

0.92322835 rounded= 0.9 or 0.92

3 0
3 years ago
Read 2 more answers
What happens when copper nitrate II is heated​
cupoosta [38]

Answer:

Copper nitrate is a blue coloured crystal.which copper nitrate is heated it loses the water molecule and then when is further heated it decomposes to give redddish brown gas,nitrogen dioxide and oxygen.

Explanation:

4 0
3 years ago
Other questions:
  • The half-life of radioactive substance is 2.5 minutes. what fraction of the origional radioactive remains after 10 mins
    6·1 answer
  • How do birds and bees help with cross-pollination?
    11·1 answer
  • 6. (2 Points) Suppose 50.0 mL of 0.350 M lithium hydroxide is mixed with 30.0 mL of 0.250 M perchloric acid. What is the pH of t
    5·1 answer
  • What property of metals allows them to be shaped into wires?
    10·1 answer
  • Give the chemical formulas for (a) silicon tetrabromide, (b) disulfur dichloride, (c) diphosphorus hexaoxide.
    5·1 answer
  • Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2. Dissolved CO2 satisfies the equilibri
    9·1 answer
  • A mixture of 80.0 g of oxygen and 80.0 g of helium has a total
    14·1 answer
  • Which best explains how insects help flowering plants in reproduction?
    15·2 answers
  • B. Directions: Identify the factors affecting the different seasons in the Philippines.
    8·1 answer
  • Could someone help me with this. i am very confused.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!